You sent 100 units. Amazon logged 95.
Every FBA shipment ends with a count, and the count is Amazon's. Inbound tracking pulls your shipments (daily and automatically from the Brand plan), sets what you sent beside what Amazon received, and turns the gap into a claim you can file for up to nine months after delivery.
We never create or change a shipment — sending inventory stays yours in Seller Central. Every OptimalCentral plan includes the reconciliation view and on-demand sync (once a day on Pro, up to 5 a day from Brand). The daily automatic sync is included from the Brand plan and in your free trial.
The count you never check, checked for you.
Reconciling a shipment means opening it in Seller Central and comparing two numbers by hand. Almost nobody does, so the money sits there.
Shipments in flight
What is on the way, where it is going, and how many units it carries, without opening the shipping queue.
Shipped vs received
Both numbers side by side, per shipment and per SKU. Closed shipments sort by gap size, worst on top.
The gap becomes a claim
After a shipment closes, the weekly sweep puts missing units on your Reimbursements page with case text ready to paste. What Amazon already reimbursed for that SKU is subtracted first, so you don't chase money already paid.
We check the count. You send the boxes.
This tool is read-only on purpose. Here is why.
Creating shipments spends your money
Each confirmation in Amazon's shipment flow commits real cost: inbound placement fees per unit, plus the carrier's bill. Those are your decisions, made against your margins.
So we do not touch them
Inbound tracking makes no write calls to your fulfillment account: not for shipments, placement or transport. The one button here re-reads your data.
Which leaves one job to do well
A tool that books the freight cannot be trusted to check the freight bill. Ours asks one question: does the number Amazon recorded match the number you sent?
Fair questions, straight answers.
What does inbound tracking show me?
Every US FBA shipment updated in the last nine months, the full window for a shipment-to-Amazon claim: status, destination fulfillment center, units shipped, and units Amazon recorded as received. In-flight shipments come first; closed ones sort by the size of the receiving gap.
Can OptimalCentral create or send my shipments?
No, by design. Every confirmation step in Amazon's shipment creation flow spends your money: placement fees per unit plus carrier charges. What to send, where, and at what cost stays with you in Seller Central. We read the result and check the count.
What happens when Amazon receives fewer units than I sent?
After the shipment closes, the next weekly sweep adds the missing units to your Reimbursements page as a claim candidate, minus what Amazon already reimbursed for that SKU. Paid plans get ready-to-paste case text with the shipment ID, both counts, and the documents to attach; the free trial shows the estimated total. Filing stays your action. We never open cases on your account.
How long do I have to claim a shipment shortfall?
Nine months from the verified delivery date; items lost inside a fulfillment center get 60 days. Before you file, check that the shipment's Contents tab in Seller Central shows it as eligible for investigation. That status is not in the API, so the case text reminds you to confirm it rather than pretending we checked.
How often does it refresh?
Daily and automatically from the Brand plan (and on your free trial). On demand from the page on every plan: once a day on Pro, up to 5 times a day on Brand, Enterprise, and the free trial. If a sync has not landed in 48 hours, the page says so instead of showing stale counts as current.
What do I need to connect?
Your Amazon Seller account, once, through the official Selling Partner authorization on the Connections page. Inbound tracking reads shipment data only.